$ docker build --build-arg some_variable_name=a_value Running that command, with the above Dockerfile, will result in the following line being printed in the process: Oh dang look at that a_value When you try to set a variable which is not ARG mentioned in the Dockerfile, you’ll get a warning. The pre-built image is stored in the Container Registry at gcr.io/cloud-builders/docker. Apache Maven is a software project management and comprehension tool. YAML steps: - name: ... REPOSITORY: The name of your Docker repository to which you're pushing the image. :octocat: GitHub Action to build and push Docker images with Buildx - docker/build-push-action The -d options tell Docker to run the container in detached mode, the -p 6379:6379 option will publish the port 6379 to the host machine and the --name redis option specifies the container name. Step 7: Push custom image to your Docker repository Log in to your virtual repository, build, tag and push your custom image with the following commands: You use the -f flag with docker build to point to a Dockerfile anywhere in your file system. The last argument linuxize/redis is the name of the image, which is used to run the container.. $ docker build -f /path/to/a/Dockerfile . So I build image as. at the end does). Since there is a slim chance you will be able to remember or recognize the containers by these generic names, consider setting the container name to something more memorable. docker build -t username/image_name:tag_name . docker build -f Dockerfile.nginx . docker build . Filename (-f, –file string) Use this option to specify the name of your Dockerfile. When you use the basic run command, Docker automatically generates a container name with a string of randomly selected numbers and letters.. When the container starts, use the following command to list all running containers: The VIRTUAL_REPO_NAME is the name “ docker ” that you assigned to your virtual repository in Step 4. Traditionally, the Dockerfile is called Dockerfile and located in the root of the context. In the example config file below, the name field specifies that the pre-build Docker image is used by Cloud Build to execute the task indicated by the args field. -t tecrahul/ubuntu:apache2.4 #2. https://www.kindacode.com/article/docker-build-with-custom-dockerfile-name -t tecrahul/apache_ubuntu:16.04 docker build . For example, you have multiple Dockerfile in the current directory with different-2 names. We tell the Docker daemon to fetch the Docker file present in the current directory (that’s what the . Next, we tell the Docker daemon to build the image and give it the specified tag. Let’s try to unpack what this command does for a bit. In the build config file: Add a name field and specify the pre-built Docker image. #3. The following example build config file shows how to login to Docker, build an image with source code stored locally, and then push the image to Docker repository.